Air Door: Service and Repair

Cover with Air Intake Unit Door

Removing

- Switch off ignition.

- Remove the Fresh Air Blower (V2), refer to => [ Fresh Air Blower ] Service and Repair.

- Remove the Air Flow Door Motor (V71), refer to => [ Air Flow Door Motor with Position Sensor ] Service and Repair.

- Remove bolts - A -.





- Remove cover - B -.

• The recirculation door - C - (with the connecting elements) and both back pressure/fresh air doors - D - and - E - are in the air intake unit housing.

• The shaft/control motor connecting element - F - and the lever - G - are secured in the cover - B - with retaining tabs - H -.

• Remove the shaft/control motor connecting element, refer to => [ Air Flow Door Motor with Position Sensor ] Service and Repair.

• The lever is constructed differently from the connecting element - F - and so it cannot be removed with the special tool (pry it out with a screwdriver if necessary).

Installing





- Insert the recirculation door - C - (with the connecting elements) and both back pressure/recirculation doors - D - and - E - in the respective mounts in the air intake unit housing.

- Install the cover - B -, making sure both shafts (from the shaft/control motor connecting element - F - and from the lever - G -) are inserted correctly in the respective door.

- Check the seat of the recirculation door - C - in the mount.

- Tighten the bolts - A - by hand (10 Ncm).

- Install the air flow door motor, refer to => [ Air Flow Door Motor with Position Sensor ] Service and Repair.

- Install the fresh air blower, refer to => [ Fresh Air Blower ] Service and Repair.

After finishing the repairs, perform the following work on the Climatronic Control Module (J255) using Vehicle diagnosis, testing and information system VAS 5051/ in the "Guided Fault Finding" function:

- Check the DTC memory and erase any malfunctions shown.

- Perform the basic setting.

- Perform the output diagnostic test mode.